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Hitachi HDS723020BLA642 manual Read Native Max Address F8h, Read Native Max Address Command F8h

Models: HDS723020BLA642

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7K200 SATA OEM Specification

14.19Read Native Max Address (F8h)

Block Output Registers Command

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register

 

7

 

 

6

 

 

5

 

 

4

 

 

3

 

 

2

 

 

1

 

 

0

 

Data

-

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

Feature

-

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

Sector Count

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

LBA Low

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

LBA Mid

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

LBA High

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

Device

 

-

 

 

L

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

Command

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

0

 

 

0

 

 

0

 

Command Block Input Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register

 

7

 

 

 

6

 

 

 

5

 

4

 

 

 

3

 

 

2

 

1

 

0

Data

-

 

 

 

-

 

 

-

-

 

 

-

 

 

-

 

-

-

Error

 

 

 

 

 

 

...See Below...

 

 

 

Sector Count

 

-

 

 

 

-

 

 

 

-

 

-

 

 

 

-

 

 

-

 

-

 

-

LBA Low

 

V

 

 

 

V

 

 

V

V

 

 

 

V

 

 

V

V

 

V

LBA Mid

 

V

 

 

 

V

 

 

V

 

V

 

 

 

V

 

 

V

 

V

 

V

 

 

 

 

 

 

V

 

 

V

 

V

 

 

 

V

 

 

V

 

V

 

V

LBA High

 

V

 

 

 

 

Device

 

-

 

 

 

-

 

 

 

-

 

-

 

 

 

H

 

 

H

 

H

 

H

Status

 

 

 

 

 

 

 

...See Below...

 

 

 

 

 

 

Error Register

 

 

 

 

 

 

 

Status Register

 

 

 

7

6

5

4

3

2

1

0

 

7

6

5

 

4

3

 

2

1

0

CRC

UNC

0

IDN

0

ABT

T0N

AM

 

BSY

RDY

DF

 

DSC

DRQ

 

COR

IDX

ERR

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

0

V

0

0

 

0

V

0

 

-

-

 

0

0

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 85 Read Native Max Address Command (F8h)

This command returns the native max LBA/CYL of HDD which is not affected by Set Max Address command.

The 48-bit native max address is greater than 268,435,455, the Read Native Max Address command return a value of 268,435,455.

Output Parameters To The Device

L

LBA mode.Indicates the addressing mode.L=0 specifies CHS mode and L=1 does LBA

 

addressing mode.

D

The device number bit. Indicates that the device number bit of the Device Register

 

should be specified. D=0 selects the master device and D=1 selects the slave device.

-

Indicates that the bit is not used.

Input Parameters From The Device

LBA Low

In LBA mode, this register contains native max LBA bits 0 - 7. (L=1)

 

In CHS mode, this register contains native max LBA Low. (L=0)

LBA High/Mid

In LBA mode, this register contains native max LBA bits 8 - 15 (Mid), 16 - 23 (High).

 

(L=1)

 

In CHS mode, this register contains native max cylinder number. (L=0)

H

In LBA mode, this register contains native max LBA bits 24 - 27. (L=1)

 

In CHS mode, this register contains native max head number.(L=0)

V

Valid. Indicates that the bit is part of an input parameter and will be set to 0 or 1 by the

 

device.

-

Indicates that the bit is not used.

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Hitachi HDS723020BLA642 manual Read Native Max Address F8h, Read Native Max Address Command F8h
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HDS723020BLA642 specifications

The Hitachi HDS723020BLA642 is a high-performance hard disk drive that exemplifies the balance between reliability and advanced technology, making it an excellent choice for a range of applications, from desktop computers to enterprise storage solutions. This 2TB SATA hard drive is designed to meet the growing data storage needs of users who demand both speed and efficiency.

One of the key features of the HDS723020BLA642 is its impressive rotational speed of 7200 RPM. This speed facilitates faster data access and improved overall performance, significantly enhancing the user experience during data-intensive operations such as gaming, video editing, and large file transfers. Coupled with a SATA III interface, this drive facilitates data transfer rates of up to 6 Gb/s, providing an efficient conduit for moving data quickly between the hard drive and the motherboard.

The drive comes equipped with a large 64 MB cache, which plays a crucial role in buffering read and write operations. This substantial amount of cache memory allows the drive to temporarily store frequently accessed data, leading to reduced latency and enabling smoother multitasking capabilities. Users will benefit from faster load times and reduced wait periods when working with large files.

Reliability is another defining characteristic of the HDS723020BLA642. Hitachi, now a part of Western Digital, has a longstanding reputation for producing durable hard drives. This model incorporates advanced technologies, such as the Fluid Dynamic Bearing (FDB) for quieter operation and better longevity. The drive also features an enhanced error recovery system that minimizes the risk of data loss, making it a suitable option for both personal and professional use.

In terms of power efficiency, the HDS723020BLA642 is designed to consume less power during operation compared to older hard drive models. This efficiency not only helps in reducing operational costs but also contributes to a longer lifespan for the drive itself.

Overall, the Hitachi HDS723020BLA642 hard drive combines speed, reliability, and efficiency into a compact package, making it an ideal choice for users needing a substantial amount of storage without compromising on performance. Whether for upgrading an existing system or building a new one, this drive offers a blend of technology and durability that caters to modern storage demands.